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USGS Daily Statistics for the Nation

The statistics generated from this site are based on approved daily-mean data and may not match those published by the USGS in official publications. The user is responsible for assessment and use of statistics from this site. For more details on why the statistics may not match, click here.

USGS 01077400 COCKERMOUTH RIVER BELOW HARDY BROOK, AT GROTON, NH


Grafton County, New Hampshire
Hydrologic Unit Code 01070001
Latitude  43°42'14", Longitude  71°50'00" NAD83
Drainage area 21.4  square miles
Gage datum 608.42 feet above NAVD88
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00060, Discharge, cubic feet per second,
Day of
month
Mean of daily mean values for each day for water year of record in, ft3/s   (Calculation Period 2007-10-01 -> 2022-09-30)

Calculation period restricted by USGS staff due to special conditions at/near site
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1 32 26 36 122 94 31 55 19 7.5 72 66 113
2 39 20 48 100 78 43 70 22 32 52 58 79
3 29 22 35 121 63 44 54 14 14 44 86 80
4 27 28 32 121 55 24 31 11 8.9 30 48 50
5 27 24 26 99 56 27 21 11 11 20 50 40
6 27 23 29 100 65 55 14 7.7 21 14 48 52
7 27 19 83 118 51 40 11 6.1 30 23 43 47
8 22 20 60 136 64 27 12 5.7 24 21 32 47
9 20 20 58 131 61 20 15 5.2 13 16 30 36
10 50 17 63 154 58 19 16 7.8 7.8 14 35 74
11 45 16 88 198 47 30 74 9 8.3 19 29 61
12 113 18 77 177 37 38 64 8.8 9.1 17 36 94
13 93 21 98 194 30 32 22 20 14 19 42 82
14 42 16 71 184 51 27 20 18 17 38 47 91
15 40 14 71 188 67 18 14 14 9.5 73 47 63
16 31 18 63 141 62 18 10 21 7.2 74 47 53
17 26 23 69 169 76 18 9.1 8.9 6.9 64 51 44
18 23 31 99 110 57 13 19 13 7.8 32 40 48
19 31 23 101 104 65 32 17 9.8 13 30 37 44
20 24 21 90 135 60 28 16 6.4 5.5 38 68 32
21 20 34 72 132 43 28 24 8.7 4.5 23 40 82
22 19 33 58 103 41 15 18 37 5.8 22 30 99
23 21 39 84 121 37 17 25 18 5.4 49 30 53
24 53 44 62 91 33 18 27 10 10 53 37 60
25 68 96 73 82 39 20 19 11 11 54 45 148
26 52 80 82 113 71 30 25 10 14 91 53 63
27 30 49 73 125 36 24 13 6 17 61 68 59
28 26 40 82 78 48 67 28 130 26 61 71 75
29 21 46 106 68 44 66 25 40 28 68 44 49
30 19   129 73 35 40 33 14 57 237 100 36
31 43   129   37   30 8.8   121   32